12.91.8.230.0090 Finder Time switch Astro 1pole 16A 230V

Why Choose the Finder 12.91.8.230.0090 Astronomical Time Switch?

The Finder 12.91.8.230.0090 is an advanced electronic astronomical daily and weekly time switch designed for automatic control of electrical loads according to programmed schedules and calculated sunrise and sunset times. As part of the Finder 12 Series, it combines conventional time programming with astronomical control for applications where switching needs to follow changing daylight hours throughout the year.

This single-channel time switch provides 1 CO (SPDT) changeover contact and incorporates astronomical data for sunrise and sunset operation. The 12.91.8.230.0090 is the special version designed for PC programming using the Finder 012.90 programming kit and Key Memory, allowing programmes to be created on a computer and transferred to the time switch.

With a 230 V AC supply, a 16 A contact rating at 250 V AC and 30 memory locations, the 12.91.8.230.0090 provides flexible automatic control for lighting and other electrical installations. Its 35.8 mm DIN rail format, six-year power reserve and automatic summer/winter time adjustment support dependable operation in electrical distribution boards and control panels.

Key Advantages

• Advanced astronomical daily and weekly time switch for automatic electrical load control.
• Integrated astronomical data enables automatic switching according to sunrise and sunset.
• 1 CO (SPDT) 16 A contact for versatile switching applications.
• 230 V AC supply suitable for mains-powered electrical installations.
• PC programming capability enables fast creation and transfer of switching programmes.
• Six-year power reserve maintains timekeeping and programmed operation during supply interruptions.

Key Features

• Finder 12 Series astronomical time switch.
• Daily and weekly programming.
• Astronomical sunrise and sunset programming.
• 1 CO (SPDT) changeover contact.
• 16 A rated contact current at 250 V AC.
• 230 V AC supply voltage.
• 30 memory locations.
• Automatic summer/winter time adjustment.
• Six-year power reserve after first operation.
• Programming via PC using the Finder 012.90 programming kit and Key Memory.
• Contact material manufactured from AgSnO2.
• 35.8 mm wide DIN rail format.

Reliable Astronomical Time Control for Lighting and Electrical Installations

Astronomical time switches such as the Finder 12.91.8.230.0090 provide automatic switching based on sunrise and sunset as well as conventional daily and weekly programmes. This enables lighting and other electrical loads to follow seasonal changes in daylight without requiring continual manual adjustment of fixed switching times.

The 12.91.8.230.0090 adds PC programming capability through the Finder 012.90 programming kit and Key Memory, allowing schedules to be prepared on a computer and transferred to the time switch. Its 30 memory locations, automatic summer/winter adjustment and six-year power reserve provide flexible and dependable control for professional electrical installations.

Typical Applications

• Street and municipal lighting control.
• Car park and external area lighting.
• Garden and landscape lighting.
• Illuminated signs and shop displays.
• Building exterior lighting systems.
• Electrical loads requiring daily, weekly or sunrise and sunset-based switching.